Flood: Fill & bayfront
Hills and bluff-line Sunset/Richmond are mostly FEMA Zone X. Mission Bay, Treasure Island, parts of SOMA and Bayview are the watch list.
San Francisco Neighborhood Data — Flood, Liquefaction & Fog Belt
San Francisco neighborhood data: flood on fill (Mission Bay, SOMA), Marina liquefaction, fog-belt microclimates, and block-level crime. Free address report.
San Francisco is not one market. Fill along Mission Bay, SOMA, and Treasure Island carries flood and groundwater risk; the Marina and other soft-story blocks sit on liquefaction-prone land; Sunset and Richmond live in summer fog while the Mission stays warmer. Median single-family price is about $1.35M — $900K in Bayview/Excelsior, $4M+ in Pacific Heights.
What to check first
Geology: High seismic
San Andreas west, Hayward across the Bay. Soft-story wood on fill (Marina, SOMA, Mission Bay) is the retrofit question.
Schools: Block-specific
Family buyers cluster in Noe Valley, West Portal, Forest Hill, Inner Sunset, Inner Richmond. Assigned school changes by address.
Microclimate: Fog vs sun
Sunset, Richmond, and Outer Twin Peaks vs Mission, Bernal, Noe Valley, Potrero — different heat, wind, and resale.
Before an offer: FEMA zone + map date, liquefaction / soft-story / retrofit, and whether the block is fog belt or sun side.
Related guides
Frequently asked questions
Which San Francisco neighborhoods have the lowest flood risk?
Areas inland and at higher elevation — Pacific Heights, Noe Valley, Twin Peaks, Glen Park, and most of the Richmond and Sunset above the bluff line — fall into FEMA Zone X (low risk). Reclaimed land such as Mission Bay, Treasure Island, and parts of Bayview-Hunters Point and SOMA carries elevated combined flood and groundwater risk.
Is earthquake risk a real factor when buying in San Francisco?
Yes. The San Andreas Fault runs along the western edge of the peninsula and the Hayward Fault sits across the Bay; the entire city is in a high-seismic-hazard zone. Soft-story wood buildings on liquefaction-prone fill (Marina, SOMA, Mission Bay) carry the highest risk. Always check the property's liquefaction zone, soft-story status, and retrofit history before making an offer.
What is the median home price in San Francisco?
Orientation median on this page (not a live MLS quote) for San Francisco is approximately $1,350,000, though it varies dramatically by neighborhood — Pacific Heights and Presidio Heights routinely exceed $4M while parts of the Excelsior and Bayview trade closer to $900K.
Which San Francisco neighborhoods are best for families?
Family-oriented buyers tend to gravitate to Noe Valley, West Portal, Forest Hill, the Inner Sunset, and the Inner Richmond for their parks, walkability, and access to top-rated public elementary schools. Use MyHomeScout to overlay school ratings, crime, and family-density data for any specific address.
How does fog and microclimate affect San Francisco neighborhoods?
San Francisco has dramatically different microclimates within a few miles. The Sunset, Richmond, and Outer Twin Peaks experience heavy summer fog and wind; the Mission, Bernal Heights, Noe Valley, and Potrero Hill are noticeably warmer and sunnier. This affects daily quality of life, heating costs, and even resale value.